micropatrology
The study of microstates; sovereign countries with very small populations, land areas, or both.
uncountable
These people make a hobby keeping track of small countries, both established ones (like Monaco and Liechtenstein) and new countries. "Micropatrology" is their word for "the study of small countries."
Where it comes from
From micro- (“very small”) + Latin patria (“country”) + -ology (“branch of learning; a study of a particular subject”), coined by the International Micropatrological Society in 1973. Perhaps a classical compound via translating micronation into Latin as micropatria (literally “microcountry”).
Related words
Adapted from the Wiktionary entry micropatrology (CC BY-SA 4.0).